Traverse drive for winding machines



a a/L 2 Sheets-Sheet 1 QR 5 -11 g A FETERSEN TRAVERSE DRIVE FOR WINDINGMACHINES Illed Sent 8 1925 May 17; .1927.

v May '17, 1927-.

A. PETERSEN TRAVERSE DRIVE FOR WINDING MACHINES Filed se t- 1925 2 Sheets-Sheet 2 Five Patented May I 17, 1 92 mwma nRiij'rE Fora wxnm iremes-ms.

it Application filed September: 8;.i923. Sefial No.661,-713. i

This invention pertainsto. machines for winding yarn or thread andrelates more particularly to mechanism for actuating the traverse guidevofsuch a machine, the principal object of the invention being to'providea traverse guide mechanism of simple and durable character whichwill lay the yarn or thread with substantialuniforinity from end to endof the bdil'ding i0 yarn mass andWherein lost 1n0tio11},or back lashbetween the severalpartsgissub'stantially-eliminatedl V 1 V A preferredembodiment of, the invention together with certain modifications thereofis-illustratedwby Way of example in. the accompanying c'ltawingsinWhich:,

Fig. 1 isa fragmentary front elevationof one end of a- \vinding-inachin'e embodying the present invention; i t 30y 2V isaflfragnientary" end elevation from the right. hand end of the deviceas}.

' Fig. 3 is a" vertical sec on the line 3 def 2; 1 1 .Fig'. 4 is afragmentary front elevation 7 similar to Fig-,1 but showingamodificjation and Q U H v Fig; 5118x2111 fend shown-in Figyh i c .2

'Referring to the drawings the numeral;- 1 indicates a. po,rtion=; ofqthe' frame of a; Winding machine of, I any 1 desired type C0111: iprising J a series .of winding units of which the endmost is indicatedat; 2,i;lhe;n1aehine is provided with a main shaft 3 W lTlCll EX- tendslongitudinally ofthe frame and Which tion to larger scale elevation thep r to: the; several- I Winding; units for actuating the latter. Eachinding ilnit, comprises a traversingt-yarnf guide-,6 mounted jup'on areciprocating tiaverse'bar 7 commonto the f: several units and Which;may be supported and gnidedein-Hany suitable manner. 4Q

' A'c-bracketd), is secured to one end 0 :Jwxihichi agguidedrum1'7"tnrns freely}; 1 i Thefitraverse bar. 7 projects,beyond the;

4 end of tlie ina ch ineframe above, the. periph-g.

- shaft 3.

A count parallel to the 'shaft' 25,;an-d turns in bearings 31 and32'Qar'ried by the bracket, 9. The {shafts 12,; 25 vand all liesubstantially inthe same plane, the shafts 12- and 301 being" disposeddiamet sides ofthe shaft25,

' 11" by means of into'fthe drum I braclzets 18 and 19 respectively,are-secured to the end portion of the-bar 7. and project horizontally inopposite directions from the bar.

.chain 20 has one of its ends secured to the second chain 23 hasone ofits ends secured to the braoketx19 and'after ipassing about the oppositesideof the drum 17 from the cha1n20 has its end portion Wrappedabout the spool 13 andis-secured to the latter substantially atthe point2-1.- The chains- 20 and 23 are wrapped: about :the' spool in oppositeClH'GQEiOIIS. i a i wBeloW and substantial1y pjarallelto the shaft 16' adrive shaft 25 is mounted in beai'ai'igs 26 and W ar-med by' 'thebracket 9,; -A worm; wheeLQS is secured to the-for- W'ard end of thedrive, shaft 25 and meshes pon the end of the main f0 with a drum 29hersha'ft beloii and:

rically opposite the [drive shaft 25v and is arranged to meshalternately with segmental and 35 fizz-edrespectivelyto,,tl1e=-osci1lat-ing shaft 12 with each otheipthusconstraining; the; shafts 12 and 30 7 always to turn injopposlte ,direct1011S.'

.e n dow r ly "to (a: poin be ow In the modified arrangement illustratedi n Figs;v d and 5' the guidev drum; 1f? illustrated inrliiigs. 1and 2fis1diSpensed- 'ith and" the este 1 i s slmfl 1 ri e LPaI'Q l l haft A1.(Ellis-wheel or disc proizided';

with aperipheral f'grooye whiclhser es as a p A; segmental driving gear33' isseeureditoy lee neshing gearsfiil and traverse bar 7.

At opposite sides of the groove the Wheel or disc is furnished withsubstantially cylindrical peripheral faces A flexible connector 44,preferably consisting of a fiat resilient strip of spring metalis'secured at one end to a pin 45 projecting from the traverse bar 7 Theflex-.

ible'connector then passes about the wheel or disc 43" engaging one ofthe peripheral surfaces 43 at 46 and has its opposite end secured to theWheel or disc at the point 47.

A second and similar flexible connector48 is secured at one end to a pm49 pro ect1ng is substantially at the middle of its stroke.

Main shaft is constantly turning'and by means of the worm 29 and Wheel28 constantly rotates the drive shaft 25 in a given direction, assumedto be that indicated by the arrow A in Fig. 3. As shown in the latterfigure the segmental gear 34 carried by the oscillating shaft 12 isturning in a counterclockwise direction While the segmental gear 35 isout of mesh with the driving gear 33, but is constrained to move in aclockwise direction by the action of the I meshing gears 36 and 37.

The spring 39 is underltension and as the gears 33 and 34 continue theirmovement the crank pin v38 passes the center line of the gears andimmediately begins to react upon the shaft 12 and gear 36 tending toturn 'them in the same direction in- Which-they are driven by thedriving gear 33. Thls ac tion gradually absorbs the back-lash betweenthe parts and-When the endmost tooth T soft-he drivlng gear has reacheditsloWermost position it immediately engages the first tooth T of thegear 35,- and -moti'on is imparted to the gear35 without hesitationcomes into engagement vvith the first tooth of the gear 34 so "that themotion of the oscillating shaft 12 is smoothand certain.

or laggingo'f'the parts. The spring acts in the same manner When thedriving gear 35 The traverse bar 7 thus moves the yarn guide accuratelyso that the yarn is laid uniformly and smoothly upon the Winding yarnmass Without any tendency to pile up I at the opposite ends'of thelatter as is usual with traverse drive mechanism character.

;By 4 employing tiall'y non-extensible connections herein disclosedbetween the oscillating shaft and the reciprocating traverse guide alllost-motion of ordinary or back lash betweenthese parts is alsoeliminated and the oscillatory movement of the shaft istransmittedwithout substantial change to the reciprocating bar. 7 In thedevice shown-in Figs. 4 an'd 5 the flexible resilient strips 44 and 48take the place of the chains shown in Figs. 1 and 2 and transmit themotion from the oscillating shaft to the reciprocating bar insubstantially the same manner.

- The device thus provided is capable of application to existing Windingmachines with out substantial change in their structure and While ofsimple character and comparatively cheap to construct provides forgreater uniformity in laying the yarn'upon the Winding yarn mass than isusual in traverse drive mechanisms such as are commonly em- Iclaim: I a1 s V 1. In a Windingmachine having a reciprocating traverse barprovided With a thread guide, an oscillatory shaft, intermittent gearsfor driving the oscillatory shaft, a freely turning guide drum to whichthe bar is substantially tangent, a spool secured to the shaft, and pairof chains engaging the spool, one end of each chain being secured to thebar and the other end portions of the respective chalns being Wrapped inopposite directions about the spool, the intermediate portions of thechainsengaging opposite sides of the drum.

2. A traverse mechanism for Winding machines having a reciprocating yarnguide gears to the other, means for transforming the intermittent rotarymovement of the segmental gears into reciprocating motion, and means fortransmitting such motion to the yarn guide. 1 p

' 3. A traverse mechanism having a reciprocating bar, anoscillatingshaft, connections between the bar and shaft and.

oscillating shaft, a counter shaft, a segmental gear upon the latter,the segmental drlving gear meshing alternately With the other segmentalgears, and means connecting the segmental gear upon the counter shaftwith a a the oscillating shaft the flexible but -substan-. p p 7 ingshaft andmeans for oscillating the shaft comprisingya rotating driveshaft, a seg- 4; Traverse mechanism having an'oscillatmental drivinggear secured thereto, a gear LUO nections between the shaft and bar formoving the latter, and means for oscillating the shaft comprising arotating drive shaft parallel to the oscillating shaft, a counter shaftparallel to the drive shaft and upon the diammetrically opposite sidethereof from the oscillating shaft, a segmental drive gear on thedriving shaft, gears secured to the oscillating shaft and counter shaftrespectively, said gears meshing alternately with the segmental drivinggear, constantly meshing gears mounted upon the oscillating shaft andcounter shaft respectively constraining said shafts to turn in oppositedirections, and a spring reacting. upon the oscillating shaft tending toeliminate backlash between the intermittently engaging gears.

6. Traverse mechanism comprising an oscillating shaft, a gear fast tothe shaft, a gear intermittently meshing with the first named gear forturning the shaft in one direction, means for turning the shaft in theopposite direction, a crank carried bythe shaft, and a resilient deviceconnected to the 7. Traverse mechanism comprising an oscillating shaft,intermittently meshing gears for turning the shaft alternately inoppositevdirections, a crank carried by the shaft, and a spring securedat one end to the crank and at its other to a fixed support, the springreacting through the shaft to take up back-lash between the gears asthey approach operativeengagement.

8. Traverse mechanism comprising an oscillating shaft, a rotating driveshaft par allel thereto, a counter shaft parallel to the drive shaft anddiametrically opposite to the oscillating shaft, a segmental drive gearsecured to the drive shaft, segmental gears alternately engageable withthe drive gear secured respectively'to the oscillating shaft and countershaft, a gear secured to the counter shaft and directly meshing with agear fixed to the oscillating shaft, a crank carried by the lattershaft, and a tension spring secured at one end to the crank and at itsopposite end to a fixed support disposed substantially in the planedefined by the several shafts.

Signed by me at Boston, Massachusetts, this seventh day of September,1923.

ANKER PETERSEN.

